Stand for writing instruments



FIG. 1 is a front perspective view of a design for a stand for writing instruments according to the present invention;

FIG. 2 is a front view thereof and the back view is the same as the front view;

FIG. 3 is a left side view thereof and the right side view is the same as the left side view;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken lines in the figures illustrate the environment only and form no part of the claimed design. 

CLAIM The ornamental design for a stand for writing instruments, as shown and described. 